Cancer in bones - how do you cope with the increasing pain?

Hi bone-cancer-patient I wonder if you have any tips about dealing with bone cancer. Ive got metastatic squamous cell cancer which has spread to my bones and spine amongst other places. In particular how to cope with increasing pain. Also in your opinion is it better to be very careful of affected bones to avoid fractures  or is it better to continue normal weight bearing exercise in order to strengthen the muscles which support the bones.

Hoping you are well

Ed